@sandro @hfaust @sun With most of ripgrep performance being from the research done by the author of the_silver_searcher aka ag, and either implementation would likely make your whole system a *lot* faster if there would be a grep(1) compatible interface. And by that I mean mostly posix standard, with maybe few bits that are common between GNU grep and BSDs grep.
At least I don't think there's any need for bug-for-bug compatibility, that's what Enterprise distros try to do, upstreams meanwhile tend to fix their bugs and occasionally make breaking changes to APIs.